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Welcome to Nassau County! The western half of
Long Island in southern New York State.
Nassau County delivers the best of all things—vibrant businesses, walkable downtowns, suburban charm, the nearby buzz of New York City, and one-step access to the world. Come to the place top-tier talent and innovative businesses call home.
- Innovative industry
- High-Tech infrastructure
- Transit-oriented-development
- Mixed-use development
- Global brand headquarters
- Convenient Inter-County Bus System
- Best Hospitals
- Vibrant downtowns
- Corporate and industry parks
- Beautiful beaches
- World-class golfing and fishing
- Nationally ranked k-12 schools
- Excellent Universities and Community College
- Convenient Interconnecting Roadways
- Variety of Residential Options
Nassau County boasts all of that, and so much more. In conjunction with our many partners, the NCIDA is committed to fostering an environment where businesses can thrive and expand — and where our fellow residents are proud to live, employees enjoy to work and children love to play.
Explore Nassau County
An interactive map of Nassau County to help you navigate our neighborhoods, roads and highways, parks, schools, and more.
COVID-19 resources
Find information on vaccinations, testing and programs to mitigate the effects of COVID-19 on our local economy.
Key industries
Learn about our diverse economy and workforce, and why Nassau County is the premier location for several major industry clusters.
Doing business here
Nassau County offers incomparable opportunities for businesses of all sizes and industries to thrive.
Living here
Nassau County offers residents the best of all things for living, working and playing.
Work with us
The NCIDA is always looking for qualified service providers and from time to time, may issue request for qualifications for various services.
Upcoming Events
Featured Event
25 Jan
Thursday, January 25, 6:45 PM EST
NCIDA Board Meeting
22 Feb
Thursday, February 22, 6:45 PM EST
NCIDA Board Meeting
27 Mar
Wednesday, March 27, 6:45 PM EST
NCIDA Board Meeting including Audit and Finance Committee Meetings
Latest News
Nassau County IDA approves $20.5M apartment project in Great Neck
November 20, 2023
Nassau County IDA approves $20.5M apartment project in Great Neck
Economic leaders push back on state Senate's IDA investigation
October 30, 2023
Economic leaders push back on state Senate's IDA investigation